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Possible null-pointer dereference
The value should be dereferenced after assertion is performed. This can lead to crash
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08cb949aea
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@ -360,8 +360,9 @@ mqtt_take_request(struct mqtt_request_t **tail, u16_t pkt_id)
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static void
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static void
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mqtt_request_time_elapsed(struct mqtt_request_t **tail, u8_t t)
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mqtt_request_time_elapsed(struct mqtt_request_t **tail, u8_t t)
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{
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{
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struct mqtt_request_t *r = *tail;
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struct mqtt_request_t *r;
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LWIP_ASSERT("mqtt_request_time_elapsed: tail != NULL", tail != NULL);
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LWIP_ASSERT("mqtt_request_time_elapsed: tail != NULL", tail != NULL);
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r = *tail;
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while (t > 0 && r != NULL) {
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while (t > 0 && r != NULL) {
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if (t >= r->timeout_diff) {
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if (t >= r->timeout_diff) {
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t -= (u8_t)r->timeout_diff;
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t -= (u8_t)r->timeout_diff;
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